You didn't say if you are using XMP profile for RAM....
You might like to wait to do this with someone who knows a bit about computer BIOSes....
On the "extreme tweaker" tab in bios scroll down....set CPU vcore voltage - manual mode and enter a value in "CPU VCORE Manual Voltage".
What value depends on what you are using now.
Use CPUz to read voltage at load (running a stress test if the PC is stable enough to do that)
.....when you enter manual voltage add a bit more...
Does that make sense? If not you would be best to let someone else troubleshoot for you.
Pressing F5 in BIOS and then F10 will load default values and might clear problems. Or clearing CMOS (see manual). Then start up system again.
What RAM? are those 2 kits? if so have you separated the kits properly so only one kit is in on the correct slots?